30669137 has 4 divisors (see below), whose sum is σ = 31658496. Its totient is φ = 29679780.

The previous prime is 30669131. The next prime is 30669151. The reversal of 30669137 is 73196603.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30669137 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30669097 and 30669106.

It is not an unprimeable number, because it can be changed into a prime (30669131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 494633 + ... + 494694.

It is an arithmetic number, because the mean of its divisors is an integer number (7914624).

Almost surely, 2^30669137 is an apocalyptic number.

It is an amenable number.

30669137 is a deficient number, since it is larger than the sum of its proper divisors (989359).

30669137 is an equidigital number, since it uses as much as digits as its factorization.

30669137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 989358.

The product of its (nonzero) digits is 20412, while the sum is 35.

The square root of 30669137 is about 5537.9722823431. The cubic root of 30669137 is about 313.0164669279.

The spelling of 30669137 in words is "thirty million, six hundred sixty-nine thousand, one hundred thirty-seven".